Metallic tower and mast



D. C. GETZ METALLIC TOWER AND MAST 2 Sheets-$heet 1 Filed June 26. 1950um .m mm a fl d wt 0 09; Y B 25 M 5 6M METALLIC TOWER AND MAST FiledJune 26. 1950 2 Shets-Sheet 2 l alliiiiiiil Fig. 4

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United States Patent METALLIC TOWER AND MAST Donald C. Getz, Salem, OhioApplication June 26, 1950, Serial No. 170,447

3 Claims. (Cl. 189-13) This invention relates to an improved metallictower and mast construction especialy designed to support a televisionantenna or the like.

An object of the invention is to provide a combined tower and mast whichis self-supporting and which possesses great rigidity and strength.

Another object is to provide a combined tower and mast in which the mastmay be rotatably adjusted and lowered relative to the tower torespectively set the antenna for most efficient reception of signals andfacilitate installation and repair of the antenna.

A further object is to provide a combined tower and mast whose principalparts consist of pipe and rod sections, and wherein the mast iseffectively braced relative to the tower by truss means including chordwires or cables connected at their upper ends to the upper portion ofthe mast and at their lower ends to the intermediate portion of thetower, and two series of radial brace rods at spaced points between theends of the chord wires and respectively connecting the latter to theintermediate portion of the mast and to the upper portion of the tower.

Other objects and features of the invention will be apparent from thefollowing description when considered with the accompanying drawings, inwhich:

Figure l is an elevational view of a combined tower and mast constructedin accordance with the present invention and supporting a televisionantenna.

Figure 2 is an enlarged fragmentary horizontal section taken on the line2-2 of Figure 1.

Figure 3 is a fragmentary vertical section taken on the line 3-3 ofFigure 2.

Figure 4 is an enlarged fragmentary vertical section taken on the line4-4 of Figure 1.

Figure 5 is an enlarged fragmentary horizontal section taken on the line5-5 of Figure 1.

Figure 6 is a fragmentary vertical section taken on the line 6-6 ofFigure 5.

Referring in detail to the drawings, 5 indicates a television antennasupported by the structure constituting the present invention, saidstructure comprising a tower 6, a mast 7 supported by said tower, and atruss means 8 bracing said mast relative to said tower. The antenna isconventional and includes a pole or shaft 9 carrying a low frequencydipole 10 and a high frequency d1pole 11 The tower comprises a pluralityof preferably three upwardly converging posts 12 rigidly connected bybrace rods 13 substantially from top to bottom, and having foot plates14 on their lower ends bolted at 15 on concrete posts or piers 16, and amast holder 17 including a vertical tube 18 having its upper endarranged between and fixed to the upper end portions of posts 12. Themast holder also includes a removable cross pin or bolt 19 in the lowerend portion of tube 18, and set screws 20 and 21 in the upper and lowerportions of said tube.

The mast 7 comprises a lower pipe section 22 having its lower portionslidably and rotatably fitted in the tube 18, and resting at its lowerend upon the cross pin or bolt 19, an upper pipe section 23 of smallerdiameter than and having its lower end portion fitted and secured in theupper end portion of section 22, and an antenna holder 24 including avertical tube 25 having its lower end portion fitted and secured in theupper end portion of the upper mast section 23 and provided near itslower end with a cross pin 26. The lower end portion of the anice tennapole 9 is fitted and secured in the tube 25 and is seated on the crosspin 26.

The truss means includes a centrally apertured plate 27 fitted on thetube 25 and resting on. the upper end of mast section 23, a plurality offlexible chord wires or cables 28 anchored at their upper ends to thecorners of plate 27 and at their lower ends to the posts 12 intermediatethe top and bottom of the tower, a turnbuckle 29 associated with eachchord wire or cable to tighten the same, and two series of radial bracerods 30 and 31 at spaced points between the ends of the chord wires orcables and respectively connecting the latter to the inter mediateportion of the mast and to the upper portion of the tower. The bracerods 30 are rigid with and radiate from the upper end of a sleeve 32through which the mast section 22 slidably extends, and a collar 33 issecured on said mast section 22 at the lower end of sleeve 32 to preventthe latter from lowering on and relative to said mast section 22.Inclined braces 34 are provided for brace rods 30 and 31, and the latterare provided at their outer ends with eye members 35 through which thechord wires or cables 28 freely extend. The brace rods 31 are fixed toand radiate from the upper ends of tube 18 and posts 12.

By loosening the set screws 20 and 21, the mast and the antenna may beturned to set the latter for most efiicient reception of signals, andupon removal of the cross pin or bolt 19, the mast may be lowered bysliding the same downwardly through the tube 18 to facilitateinstallation and repair of the antenna.

From the foregoing description, the invention and its advantages will beunderstood and appreciated by those skilled in the art.

Having described the invention, What is claimed as new is:

1. For use in erecting a television antenna in a plane elevated wellabove the ground and at a safe distance from adjacent buildings,self-supporting support means comprising, in combination, a metallictower, a metallic mast slidably and rotatably mounted atop said towerand having its lower end accessible by way of said tower for raising andlowering, a vertical tube secured to the upper end of said mast andproviding an adapter socket for reception and removable retention of anantenna pole, horizontal spreader rods secured to and radiating fromsaid tower, a sleeve surrounding the intermediate portion of said mast,a collar adjustably mounted on said intermediate portion, said sleeveresting on said collar, other horizontal spreader rods secured to andradiating from said sleeve, flexible guy wires having their intermediateportions slidably lashed to the outer ends of the respective spreaderrods, having their upper ends connected with the upper portion of saidmast and their lower ends adjustably anchored on an intermediate portionof said tower.

2. A television antenna and self-supporting support means thereforcomprising, in combination, a metallic tower adapted to be fixedlyanchored in the ground, an open-ended vertical tube mounted atop saidtower, a metallic mast slidably and rotatably mounted in said verticaltube, means on said tube for fixing the mast against rotation relativeto the tube, additional means on said tube permitting the mast to beslid downwardly through and beyond the lower end portion of said tube, avertical tube secured to the upper end of said mast, a televisionantenna including a post secured in said last-named vertical tube, thelatter, mast and antenna being slidably and rotatably actuable relativeto said tower, spreader means mounted on said tower, additional spreadermeans mounted on said mast, a plurality of flexible guy wires havingintermediate portions adjustably connectible with the respectivespreader means, means attaching the upper ends of the guy wires to theupper end portion of said mast, and additional means adjustablyconnecting the lower ends of said wires with said tower.

3. For use in grounding and erecting a television antenna in a planewhich is elevated well above the ground and at a safe distance fromadjacent buildings and which involves the use of a relatively highmetallic tower; the improvement comprising a metallic tower, a metallicmast having a vertical tube secured to the upper end thereof andproviding an adapter socket for reception and removable retention of thepole portion of a television antenna, an open ended vertical sleevemounted atop said tower depending axially into an adjacent upper endportion of said tower and providing an adapter for the adjacent lowerend portion of said mast, said mast fitting telescopically into saidadapter sleeve for rotation and sliding and being adapted to slidedownwardly through and below the bottom of the sleeve in order to lowerthe mast for repairing, adjusting and otherwise working on the antenna,a removable crosspin extending through the lower end portion of saidsleeve, said mast resting on said crosspin so that when the crosspin isremoved the mast may be dropped down through the sleeve and into thetower in the manner stated, and truss means bracing the mast andembodying flexible chord wires connected at their upper ends to theupper portion of the mast and connected adjustably and removably attheir lower ends to said tower, a second sleeve surrounding theintermediate portion of the mast, a collar adjustably mounted on 4 theintermediate portion, said second sleeve resting on said collar, andhorizontal spreader rods secured to and radiating from the respectivesleeves, the outer ends of said rods being slidably connected withadjacent cooperating portions of the respective chord wires.

References Cited in the file of this patent UNITED STATES PATENTS 37,207Welham Dec. 16, 1862 287,881 Smith Nov. 6, 1883 484,144 Dorward Oct. 11,1892 508,078 Baker Nov. 7, 1893 781,977 Wentworth Feb. 7, 1905 1,669,611Goldberg May 15, 1928 1,963,014 Brown June 12, 1934' 2,583,210 EdwardsJan. 22, 1952 2,592,108 Bader Apr. 8, 1952 2,611,456 Bader Sept. 23,1952

